Antiskidding device for automobiles.



APPLICATION FILED JULY5, 1912.

Patented Apr. 8,1913.

rnaononn B. THOMAS, or omnom'niassacnosnrrs.

ANTISKIDDING DEVICE FOR AUTQMOBILES.

Specification of Letters Patent. 1

Patented Apr. 8, 1913.

Application filed July 5,1912. Serial 310,707,878

with sharp edges, adapted for movement into and out of engagement with the ground,

said disks being arranged adjacent the tree; tion-wheels of the automobile for effective operation and held against axial movement; and the invention also has for its object improved form 01" supports for said disks which admit of the disks rotating while in engagement with the ground, and of being supported in a yielding manner to admit of rising and falling to adjust themselves to inequalities of the surface of the ground,

said supportsbeing movable by means of hand-levers and intermediate connections,- whereby the disksare moved into and out of engagement with the ground. p Figure 1 is a plan view of an anti-skidding device for automobiles embodying this invention. Fig.2 is a side elevation of the device shown in Fig. 1. Fig. 3 is an enlarged front View of one of the anti-skidding disks and supporting-means therefor. Fig. 4 is a transverse vertical section of the parts shown in Fig. 3. Fig. 5 is an en larged vertical section of one of the antiskidding disks.

The frame 10, frontwheels 12, 12, rear traction-wheels 13, 13, arranged on an axle 14, are all intended to illustrate the corresponding parts of any ordinarily constructed automobile.

'15 represents one of my improved antiskidding disks, it being here shown as a concavoconvex disk with a sharp edge adapted for engagement with the ground. Said disk is secured to a shaft 16, or it may be mounted rotatably on said shaft, so that' it is free to rotate-"The shaft '16 is borne by a suitable support arranged adjacent one of the tractiomwheels, and, as here shown,

/a" bracket 20 is pivotally connected to hangers 21, 21, arranged on the axle 1a,

and said bracket has a 'pair of arms 23, at

one end which receive between them a block 24 which is pivotally connected to the arms, and said bracket has a pair of arms 25 at 'the other end which receive between them a block 26 having pins 27 at its opposite sides which enter slots28 in the arms, thus admitting of a movement of the block corresponding to the length of the slot, said arms 25 acting as guiding means for the intermediate portion of the shaft. The block 26 is pressed downward by a spring 30, which latter exerts a yieldin ressure thereupon. The disk-carryin s a 16 extends through holes in both %locks 26 and 24, being rotatably mounted on said blocks and supported by them. Said shaft 16 is also held against axial movementin one direction by a collar 31, which is secured to it, and which enga es the block 26. The supporting-means t as provided for the disk-carrying shaft permits said shaft to rotate and also to yield in an upward direc- I tion,so that the disk is permitted to re.- tate, and to rise and fall according to inequalities of the ground. Said bracket 20 'is movable on its. pivotal connections to move the disk into and out of engagement with'the ground, and, as here shown, a link 40 is connected at one end to the bracket, its other end being connected to an arm 41, secured to a shaft 42, to which a hand-lever as is connected so. that movement oi said hand-lever in ,one or the other direction rocks the shaft 42 and through the link opcrates to move the bracket 20 on its pivotal connectmns.

7 Normally, the device will be held with its disk out of en but is adapted to e moved by the hand-lever into engagement with the ground at any time desired, and to be held as long as desired, and when in engagement with the ground is very effective to prevent the Wheels from skidding.

In the preferred embodiment of my in vention two antislndding disks are employed, one adjacent each rear tractionwheel and separate levers are employed for operating said disks.

The anti-slddding device herein described, consisting of a pair of ground enga n devices, each comprising a shaft i eld against axial movement, a disk arranged on one end of said shaft, a swinging hracket,

gementwith the ground,v

bearingiaiockas for said shaft carrieoi by saioi In testimony whereof, I have signeoi my bracket, we of said blocks being pivotally name to this specification, in the presence of connected to the bracket and the other siicltwo subscribing Witnesses.

ably connected "with the bracket and held THEQDORE B. THOMAS. againsi upward movement b a spring, and Nit-messes:

means connected with sai brackets for B. J. NOYEB,

swinging them. H. BUDAYIB. 

